86006646920 has 32 divisors (see below), whose sum is σ = 194345512920. Its totient is φ = 34255004160.

The previous prime is 86006646871. The next prime is 86006646923. The reversal of 86006646920 is 2964660068.

It can be written as a sum of positive squares in 4 ways, for example, as 27754893604 + 58251753316 = 166598^2 + 241354^2 .

It is not an unprimeable number, because it can be changed into a prime (86006646923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4604771 + ... + 4623410.

Almost surely, 2^86006646920 is an apocalyptic number.

It is an amenable number.

86006646920 is an abundant number, since it is smaller than the sum of its proper divisors (108338866000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86006646920 is a wasteful number, since it uses less digits than its factorization.

86006646920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9228425 (or 9228421 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 86006646920 in words is "eighty-six billion, six million, six hundred forty-six thousand, nine hundred twenty".